Classification of Yecoraite |
| IMA status: | Approved 1983 |
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| Strunz 8th edition ID: | 4/K.18-10
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| Nickel-Strunz 10th (pending) edition ID: | 7.DF.70
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates) D : Sulfates (selenates, etc.) with additional anions, with H2O F : With large and medium-sized cations |
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| Dana 8th edition ID: | 34.8.6.1
34 : SELENITES, TELLURITES AND SULFITES 8 : Compound Selenites, Tellurites and Sulfites |
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| Hey's CIM Ref.: | 28.4.17
28 : Selenites, Selenates, Tellurites, and Tellurates 4 : Tellurates |
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| mindat.org URL: | http://www.mindat.org/min-4358.html Please feel free to link to this page. |
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Type Occurrence of Yecoraite |
| Type Locality: | San Martín de Porres Mine, Yécora, Mun. de Yécora, Sonora, Mexico |
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| Place of Conservation of Type Material: | National History Museum, London 1984,479 |
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| Year of Discovery: | 1985 |
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| Geological Setting of type material: | Oxidation product of tetradymite and pyrite. |
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Physical Properties of Yecoraite |
| Lustre: | Resinous |
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| Diaphaneity (Transparency): | Semitransparent |
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| Colour: | Yellow, orange to brown, yellow-brown |
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| Hardness (Mohs): | 3 |
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| Fracture: | Conchoidal |
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| Density (measured): | 5.59(11) g/cm3 |
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Crystallography of Yecoraite |
| Morphology: | Fibrous |
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| Comment: | Tetragonal or hexagonal |
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Optical Data of Yecoraite |
| Type: | Uniaxial (+) |
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| RI values: | nω = 1.812 nε = 1.824 |
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| Maximum Birefringence: | δ = 0.012
 Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration. |
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| Surface Relief: | Very High |
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Chemical Properties of Yecoraite |
| Formula: | |
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| Essential elements: | Bi, Fe, H, O, Te |
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| All elements listed in formula: | Bi, Fe, H, O, Te |
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Relationship of Yecoraite to other Species |
| Related Minerals - Nickel-Strunz Grouping): | |
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| Related Minerals - Hey's Index Grouping: | |
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Other Names for Yecoraite |
| Synonyms: | |
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| German names: | |
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| Spanish names: | |
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Other Information |
| Health Warning: | No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care. |
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References for Yecoraite |
| Reference List: | Bol. Sociedad Mexicana De Mineralogia.
Acta Crystallographica (1985): 1: 10-16.
American Mineralogist (1986): 71: 1547.
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Internet Links for Yecoraite |
| Search Engines: |
Look for Yecoraite on Google
Look for Yecoraite images on Google |
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| External Links: | Look for Yecoraite on WebmineralLook for Yecoraite on Athena MineralogyLook for Yecoraite on WikipediaLook for Yecoraite on Mineralien AtlasRaman and XRD data at RRUFF projectAmerican Mineralogist Crystal Structure DatabaseSearch for Yecoraite in the Natural History Museum (London) online catalogueYecoraite details from Handbook of Mineralogy (PDF) |
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Localities for Yecoraite |